Automatic sprinkler.



PATENTED JUNE 26, 1906.

E. L. THOMPSON.

- AUTOMATIC SPRINKLER. APPLICATION FILED SEPT. 2, 1902. RENEWED DEO..1,1905.

III

Warren snares EVERETT L. THOMPSON, OF BROOKLYN, NEW

AUTOMATIC ra'rnnr OFFICE.

Application filed September 2, 1902. Renewed December 1. 1905. SerialNo.

Specification of Letters Patent.

Patented June 26, 1906.

1'0 all whom it may concern:

Be it known that I, EVERETT L. THOMP- soN, of New York city, borough ofBrooklyn, county of Kings, and State of New York, have invented certainnew and useful Improvements in Automatic Sprinklers, of which thefollowing is a specification, taken in connection with the accompanyingdrawings, which form a part of the same.

This invention relates to automatic sprinklers for connection withdistributing-pipes in buildings for the purpose of protecting suchbuildings from fire.

In the accompanying drawings, in which the same reference-letter refersto similar parts in both figures, Figure 1 is a sectional view of oneform of sprinkler embodying this invention. Fig. 2 is a sectional viewshowing a modified construction.

The open nozzle 1 of this sprink er, preferably constructed of brass orother metal, (shown in Fig. 1,) is preferably mounted in the head A, thetwo parts being joined by the tln'eads K on the nozzle, which engage thecorresponding threads C on the head. The headA is shown as threaded atits upper portion for ready connection with the distribut ing-pipelines, the nut B being provided to turn this head. The cup-shapeddistributer D, which is common in this art, is supported in line withand below the nozzle by the arm E, secured to the head, so that by thismeans the distributor is rigidly held in position to deflect the waterissuing from the open nozzle. The nozzle F may, if desired, be providedwith the liner L, which is shown forced within the nozzle so as to berigidly supported in position. This liner is provided with the internalshoulder N,'the lower end of the liner in this manner forming the pocket0, which in this instance is annular. The lower end of the nozzle isprovided with a flange, comprising the straight part G and the flarednozzle-flange ll.

The pocket 0 is filled with any suitable material, preferably such asPitl'tll'llll-WilX or other wax or even a more readily-fusible wax orheavy oil, so as to form a fusible releasable impervious seal. Thediaphragm I, which may, if desired, have the edge flange It, is put inposition, as indicated in Fig. 1, and is held firmly in contact with thelower end of the liner, so as to retain the seal in position at thispoint. The cap T, formed of anysuitable metal, is provided with theflared edge .llangc U, which engages the corresponding I flange at thebottom of the nozzle. l flanges are secured together fusible solder,which, as is well art, releases the parts on an excessive rise oftemperature.

In Fig. 2 there is shown a form of nozzle which is also adapted forready connection with a head, such as is shown in Fig. 1, this nozzle F,formed of suitable metal, being shown as provided with screw-threads Kat its upper end. The low erend of the nozzle is in this inl stancepreferably provided with an offset IV and with the flanges G and H atits lower end, j these flanges being engaged by corresponding flanges onthe cap T, which is secured to i the nozzle by the fusible solder V, soas to l form an automatic release for the same. A re- I leasableimpervious seal S preferably formed 5 of paraffin or other wax or heavyoil, is located within the nozzle adjacent the fusible joint, so as toprevent the access of Water thereto. If desired, the diaphragm X may beemployed. to positively maintain this seal in position, this diap agm,preferably of metal, engaging the offset W, as indicated, so as to forma closed pocket within which the seal is located.

by a suitable These known in this It will of course be apparent that theiml l l I l l pervious seal prevents the access of the water j withinthe nozzle to the fusible joint, which maintains the cap in position.Furthermore, j if the seal is located within an inclosed pocket, r asindicated, it is maintained in position no matter how the sprinkler maybe operated, j whether in a pendent position, as indicated in 1 thedrawings, or in an upright position. j In the event of a rise oftemperature the 5 seal softens and in some cases melts, but may bepositively maintained in. this event adjacent the fusible joint, so thatthe water within the sprinkler is kept away from such joint until thecap is released from the nozzle, so that the operation of the sprinkleris reliable under all circumstances and not disturbed by the presence ofwater or other operating fluid j ad acent the fusible joint orthermal-releasmg means.

leased the cap and diaphragm are at once nozzle through which the waterissues, and it impervious seal is so constructed that no substantialresistance is offered thereby to the release of the cap in the operationof the j sprinkler. With this form of fusible joint also there issubstantially no opportunity for As soon as the fusible joint isreforced away from the nozzle, leaving an open will be noted,furthermora that the releasable external corrosion of the parts near thefusible joint, so as to render the emergency operation of the sprinklerunreliable. In all cases, however, it is desirable that the seal be solocated with reference to the thermally-releasable cap and. thedistributing-pipe with which the nozzle is connected-that the seal,which is preferably of fusible wax, prevents the presence of theoperating fluid adjacent the juncture between the cap and the nozzle. Itis of course understood that it is not necessary to construct thissprinkler exactly as has been described.

Variations may be madein the proportions of parts, and, furthermore,parts of this device may be omitted and other parts substituted, ifdesired, without departing from the spirit of this invention. I do not,therefore, desire to be limited to the disclosure which has been made inthis case; but

That I claim as new and what I desire to secure by Letters Patent is setforth in the appended claims.

1. In an automatic sprinkler, a head for connection with adistributing-pipe, a distributer supported from said head, an opennozzle removably secured in said head in line With said distributer,said nozzle being provided with the flaring flange adjacent its openend, said nozzle comprising a liner secured within the same and providedwith an internal shoulder to form an anunlar pocket, a cap provided witha flared flange releasably secured to said nozzle by a fusible joint, animpervious seal within said. pocket to prevent the access of Water tosaid fusible joint and a diaphragm to maintain said seal in position.

2. In an automatic sprinkler, an open nozzle provided with a flaredflange adjacent its open end, a cap provided with a flared flangesecured by a fusible joint to said nozzle, said nozzle being constructedto form a pocket adjacent said fusible joint, an impervious seal in saidpocket and a diaphragm to maintain said seal in position.

3. In an automatic sprinkler, a nozzle, a cap releasably secured to saidnozzle by a fusible joint and a releasable impervious seal within saidnozzle, said nozzle providing an open unobstructed passage of full areaon the release of said cap.

4. In an automatic sprinkler, an open nozzle, a cap releasably securedupon said nozzle by a fusible joint, a releasable impervious seal withinsaid nozzle adjacent said fusible joint and means to maintain said sealin position.

5. 'In an automatic sprinkler, an open nozzle, a cap secured upon saidnozzle byafusible joint and a releasable impervious seal within saidnozzle adjacent said fusible joint.

6 In an automatic sprinklrr, a nozzle, a cap secured to said nozzle bythermally-operated releasing means and a releasable in1-' pervious sealwithin said nozzle, said nozzle providing an open unobstructed passageof full area on the release of said cap.

7. In an automaticsprinkler, an open nozzle provided with a flangeadjacent the open end of the same, a cap releasably secured upon saidnozzle by the fusible joint, a releasable impervious seal within saidnozzle adj acent said fusible joint and means to maintain said seal inposition, said means being releasable upon the release of said fusiblejoint to provide an open unobstructed passage throu h said nozzle.

8. 11 an automatic sprinkler, an open-nozzle, a cap releasably securedupon said nozzle by the fusible joint, a releasable impervious sealwithin said nozzle adjacent said fusible joint and means to maintainsaid seal in position, said means being releasable to provide an openunobstructed passage through said nozzle on the release of said cap.

9. In an automatic sprinkler, an open nozzle, a cap secured upon saidnozzle by afusible joint and a fusible impervious seal within saidnozzle adjacent said fusible joint to prevent the contact of water withsaid fusible joint and to provide an open unobstructed passage throughsaid nozzle on the release of said fusible joint.

10. In an automatic sprinkler, an open nozzle, a cap secured upon saidnozzle by a fusible joint, and a releasable wax seal Within said nozzleadjacent said fusible joint to prevent the access of fluid thereto.

11. In an automatic sprinkler, a nozzle, a cap releasably secured uponsaid nozzle, and a fusible wax seal to prevent the presence of fluidadjacent said cap.

12. In an automatic sprinkler, a nozzle, a cap releasably secured uponsaid nozzle, a releasable impervious seal to prevent the presence offluid adjacent said cap and means to maintain said seal in position,said means being releasable upon the release of said cap.

13. In an automatic sprinkler, a nozzle, a cap releasably secured uponsaid nozzle by a fusible joint and a fusible wax seal to prevent thepresence of fluid adjacent said fusible joint, said seal beingreleasable upon the release of said cap.

14. In an automatic sprinkler, a nozzle, a cap secured upon said nozzleby a fusible joint and a releasable fusible impervious seal to preventthe presence of fluid adjacent said fusible joint.

15. In an automatic sprinkler, a nozzle, a thermally-releasable capsecured thereto and a fusible seal to prevent the presence of fluidadjacent the juncture betweensaid cap and said nozzle.

EVERETT L. THOMPSON.

Witnesses:

JESSIE B. KAY, IIARRY L. Duncan.

